OAR OAR Mechanical Comprehension: Electricity Questions and Answers 2

Question 1

A circuit contains a 12V battery and a 4-ohm resistor. What is the current flowing through the circuit?

Accepted Answer

3 A

Answer

4 A

Answer

8 A

Answer

48 A

Question 2

What happens to the total resistance when resistors are connected in parallel?

Accepted Answer

It decreases below the smallest individual resistor

Answer

It equals the sum of all resistors

Answer

It remains the same as the largest resistor

Answer

It doubles

Question 3

Which material is the best electrical conductor?

Accepted Answer

Silver

Answer

Rubber

Answer

Glass

Answer

Wood

Question 4

In a series circuit with three identical light bulbs, what happens if one bulb burns out?

Accepted Answer

All bulbs go out

Answer

The other two get brighter

Answer

Only the adjacent bulb goes out

Answer

Nothing changes

Question 5

What is the unit of electrical power?

Accepted Answer

Watt

Answer

Volt

Answer

Ampere

Answer

Ohm

Question 6

A capacitor stores energy in what form?

Accepted Answer

An electric field

Answer

A magnetic field

Answer

Chemical energy

Answer

Thermal energy